The AD2100 Stereo Audio Delay/Synchronizer can be used as a variable audio
delay for automatic lip sync correction or a fixed audio delay of up to
5.14 seconds (adjustable in 1 mS increments) for obscenity screening,
or other audio delay requirements.

Lip sync correction is completely automatic when the delay of the AD2100
is controlled with a control pulse from compatible video frame synchronizers,
such as the Pixel Instruments DS4200, VS5200, or VS2100. As the video
delay varies, the AD2100 tracks by automatically adjusting the audio delay.
If your video processor does not provide a delay control pulse, the Pixel
Instruments DD2100 or DD3100 Video Delay Detector can be used to measure
the actual video delay and "steer" the AD2100. In addition to
the automatically varying delay, a fixed offset can be added to compensate
for other external video delays.

When the delay is varying, it is important that audible pitch changes
be minimized or eliminated. Using advanced hardware processing and sophisticated
software algorithms, the AD2100 delay changes at a controlled rate in
0.1 mS increments, ensuring maximum audio transparency.

In an obscenity screening application, the delay can be set in 1 mS increments
up to a maximum of 5.14 seconds (10.28 seconds for monaural signals).
Pressing the "Dump" button on the front panel, or a remote "Dump"
button causes an instant zero delay, censoring the unwanted audio in memory.
After the button is released, the delay is increased at a controlled rate,
quickly restoring the original setting.

The front panel of the AD3100 includes an LCD mode/status display, dual
bargraph audio level display and gain trim controls for the input and
output. Performance specifications are exceptional as a result of the
16 bit linear PCM sampling at 48 kHz. Frequency response is flat from
20 Hz to 22 kHz, noise and distortion are extremely low, and dynamic range
is greater than 95 dB.

The audio inputs and outputs use industry standard 3-pin XLRs, and the
inputs are automatically bypassed to the outputs with a loss of power.
Delay settings and operating mode are stored in non-volatile memory for
restoration at power up.